Lens · prime
Mamiya Sekor C 180mm f/4.5
Mamiya · from 1974
Discontinuedmedium-format
Mamiya Sekor C 180mm f/4.5: 5 elements in 3 groups, 77mm filter thread, 870g.
- Focal length
- 180mm
- Max aperture
- f/4.5
- Mount
- Mamiya RB
- Format
- medium-format
- Elements / groups
- 5 / 3
Known for
- Portraits
- Headshots
- Fashion
- Beauty
Considerations
- Leaf shutter in the lens: cock the camera and lens shutters before mounting
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)5, level 5 of 5
Sharpness (stopped)5, level 5 of 5
Contrast5, level 5 of 5
Flare resistance4, level 4 of 5
CA control4, level 4 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5
Bokeh: Smooth, flattering
Rendering: Classic telephoto compression
Colour: Warm Mamiya
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Buying guide
Check the leaf shutter fires at all speeds, the aperture and focusing smoothness, and the condition of the glass.
Specifications
| Mount | Mamiya RB |
| Focal Length | 180mm |
| Max Aperture | f/4.5 |
| Min Aperture | f/45 |
| Filter Size | 77mm |
| Weight | 870g |
Optical design
| Formula | Telephoto |
| Elements | 5 |
| Groups | 3 |
| Coating | Multi-Coated |
Pricing
- Typical used price (US market)
- $200 - $400
- Mint
- ~$500
Indicative, no dated source.